--- a/mobile/android/base/java/org/mozilla/gecko/home/HomeConfigPrefsBackend.java
+++ b/mobile/android/base/java/org/mozilla/gecko/home/HomeConfigPrefsBackend.java
@@ -23,25 +23,27 @@ import org.mozilla.gecko.home.HomeConfig
 import org.mozilla.gecko.util.HardwareUtils;
 
 import android.content.BroadcastReceiver;
 import android.content.Context;
 import android.content.Intent;
 import android.content.IntentFilter;
 import android.content.SharedPreferences;
 import android.support.annotation.CheckResult;
+import android.support.annotation.VisibleForTesting;
 import android.support.v4.content.LocalBroadcastManager;
 import android.text.TextUtils;
 import android.util.Log;
 
 public class HomeConfigPrefsBackend implements HomeConfigBackend {
     private static final String LOGTAG = "GeckoHomeConfigBackend";
 
     // Increment this to trigger a migration.
-    private static final int VERSION = 8;
+    @VisibleForTesting
+    static final int VERSION = 8;
 
     // This key was originally used to store only an array of panel configs.
     public static final String PREFS_CONFIG_KEY_OLD = "home_panels";
 
     // This key is now used to store a version number with the array of panel configs.
     public static final String PREFS_CONFIG_KEY = "home_panels_with_version";
 
     // Keys used with JSON object stored in prefs.